Polar Orbiting satellites – advantages and disadvantages.
Since the orbit is lower than for the Geostationary satellites, the data resolution is higher.
They provide global coverage, necessary for NWP models and climatic studies.
Why polar orbits are useful for surveillance satellites?
Polar orbits are often used for earth-mapping, earth observation, capturing the earth as time passes from one point, reconnaissance satellites, as well as for some weather satellites. The Iridium satellite constellation also uses a polar orbit to provide telecommunications services.
What is a polar orbiting satellite?
Satellites in polar orbit look down on the Earth’s entire surface and can pass over the North and South Poles several times a day. Polar orbits are used for reconnaissance and Earth observation.
How do polar orbit satellites work?
Polar-orbiting satellites also pass over the planet’s poles on each revolution, although their orbits are far less elliptical. The polar orbit remains fixed in space as Earth rotates inside the orbit. As a result, much of Earth passes under a satellite in a polar orbit.
What is the difference between geostationary and polar orbiting satellites?
Geostationary Satellites have a circular orbit that lies in the plane of the earth’s equator. In case of polar satellites, the orbital plane contains the Earth’s axis so the satellite passes over the Earth’s poles as seen in the illustration.